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48
the primary to the onset of the secondary, the intervals were most
frequently 14, 17 and 18 days, the shortest being 10 and the longest
28. The corresponding times between the onset of the primary
and the rash of the secondary were 26, 20 and 29 days, and between
the rash of the primary and the rash of the secondary 22, 14 and 25
days. The longest interval between removal of the primary and
onset of the secondary case was 18 days, and between removal
and rash of the secondary 22 days.
A total of 5,517 visits were paid to the homes of smallpox
contacts by the Sanitary Inspectors. Visiting is continued to the
19th day from last exposure to infection.
The followirg table shows the position of vaccination for the
last year :—
1. Successfully vaccinated 587
2. Insusceptible 3
3. Conscientious Objectors 858
4. Died before Vaccination 62
5. Postponed by Medical Certificate 50
6. Removed 87
7. Unaccounted for at present 206
No vaccinations were performed during the year by the Medical
Officer of Health under the Public Health (Smallpox Prevention)
Regulations, 1917.